Machine for graining wood.



110.846,131. PATENTED MAR. 5, 1907. c. w. MUNZ. 111110111111; P011 6111111111111 woon.

APPLIGATIOH FILED HAY 20, 1905.

2 SHEETS-SHEET 1.

u u 10 o a 110.846,131. j PATBNTBD MAR. 5, 1907.

c. W. MUNz. MACHINE F011 GRAINING WOOD.

PPLIUATION FILED. urso. 1905.

2 summa-snm a.

IINITED .STATES OFIE.l

f CHARLES W. IDETROIYLMICHIGAN.,

MACHINE Fon GRAINING wooo. l

NO- 846,131. v Specication of Letters Patent. Patented March 5, 1907.

' Application sled May 2o, 1905. lsarna No. 261,450.

.To all whom it 1x1/ty concern: l the pigment which iills the grain of the Wood Be it known that I, CHARLES W. MUNZ, repattern and 'istransferred to the roller D. siding at Detroit, in the county of Wayne (.lonstructions substantially as above deand State of Michigan, a citizen ofthe United scribed have heretofore been employed in 5 States, have invented certainfnew and useful l graining-machines, and the present inven- 6c Improvements in Machines for` Graining g' tion relates tofccrtain improvements which IVOod, of which the followingr is a speeilica- -render the operation more perfect andada )t tion, reference being had therein to the acthe machine for a greater range of worli. eoi'nlpanying drawings. The first of these improvements isthe con? T 1e invention 'relates to machines destruction of a sera er by which the surplus 6c signed for transferring to a surface an ini- 1 aigment .is removed from the patterned surpression or exactreprint of the natural grain face before the transfer of the impression to of wood. i i the roller'D. -lt is very essential that all It is the more specific object of the invenportions ofthe surfacewith theexcepltion 'of I5 tion to obtain-a machine adapted for grainthe grain indentations should be thoroughly 7o ing boards or fashioned surfaces of a comcleaned from the pigment, as 'otherwise a mon wood to produce the appearance of-a smearin or discoloration is produced in the higher grade of material. Thus, for. examprint. Ihis cleaning is difhcult for the reaf ple, articles forl'ned'from maple may be given `son that the atterned surface is never a true 2o the 4appearance of `quarteredcak, or, if` decylinder an under the influence of a liquid 75 sire a soft wood may bel given the appearigment often is swelled considerably out of 'ance of hard wood. Itis` obvious that for l orrn. Thus anyrigid or semi-rigid scraper manuses the softer or cheaper grades of Will not vclean all portions alike. In my conwoo are equal or superior Ato more eXpenstruction I employ ascrapin edgewhich 1s sive'variet-ies in everything but appearance, formed o f a material of a exible nature, 8o and by the use of my invention the latter also such as leather, and the necessary pressure is obtained. 1 l r upon the surface is lproduced by a resilient In the drawings,.Figure. 1- is a vertical lonreinforcement; Furthermore, the resilient gitudinal section through the machine. Fig. member is so formed that the tension on 3o 2 is an enlarged sectional perspective view of -variousfortions of the scraping edge may be 85 the scraperfor cleanin the wood pattern. adjuste when necessary, so as to produce a y Fig. 3 is a lan view t ereof. Fig. 4is an umform effect throughout its entire length., elevation il ustrati `the machine as 'adapt- As illustrated, H 1s the scraping edge ,which ed for graining afas 'onedsurface is formed of a flat strip of leather and 1sh y invention is of that type in which the vclam ed between a number of su portinfr- 9o 4o lWhich is journaledashaft B, havingmounted a justedv laterally by the thumb-screws 95 patterned surface is upon a revolving cylinbars I. One of these bars is a Justab y der and the grain of the pattern is referabl secured to the frame of the machine, as by f arranged to extend circumferential ythereo :the trunnions d at opposite ends, which ens shown, A is a suitable framework ingage with slots e in thejslde frames and are thereon the drum or cylinder C. his cylin The angularity of the bars I to the scraper I der, as illustrated,` is formed by aplurality may bechanged by meansof rockarms vg, en-

of metallic heads a, secured `to the shaft, gaging with a laterallyfadJustable bearing h,

. upon which are a series of staves t, and the operated by the adjusting-screw c. The bars l patterned surface cis secured tothese staves. I I are clamped together by bolts J, .prefer-y roo isa transfer-roller which is journaledin ably having wing-nuts J', by means of which verticallyradjustable bearings, preferably in the scraper H is guickly clamped or released.

'the` ivotal linksE, secured to opposite ends The scraper is a so adjusted in'relationto of t e framex These links are adjusted by the clampng-barsIIt, and for tlns urpose a means of a screw F,.so as to move the trans metallic bar j is' placed in rear of t e leather 105 fer-roll in or out of contactwith the cylinder strip and "s adjusted by a series of thumbortovary the tensionl with which it is placed screws c.. The resilient reinforcement for the into contact with the patterned surface. scraper 1s formed by a series of springs K, VGisatank or vat intowhich the'loWer-por-g which are attached to the clamping-bar I '55 tion of the cylinder C dips and Winch-contains and project forward therefrom into contact 1 1 o 'with the upper face of the leather scraper H.

j Each of these springs maybe adjusted in tension by al thumb-screw L, which engages a threaded beariii in the bar M, secured to the bars I I bythe olts J I.

With the-construction just described the scraper H may be adjusted by' tlie thumbscrewsik to have all portionsof its scraping VIS edge equidistant from the pattern-cylinder. By the adjusting-screwsf lthe scraper can be moved'toward or from the cylinder, and by i". contact with thepatteined surface. lThe the scraper and produces a clear expression result is that the surface vis cleanly wiped by upon thev transfer-roll, which is subsequently printed onthe surface to be grained.

The pigment which is placed in the grain of the pattern-is held-in the tank G, before de-' scribed'. This -tank is preferably vertically movable from the `position shown in -full lines to that indicatedin dotted lines and to this end is supported by the parallel links N N and is raised and lowered by the crank-arm This crank-arm engages a slotted bear ing P at the bottom of the tank, and by swinging the 'crank a quarter-turn the adjustment is effected. In the lower position of the tank it is also thrown forward, so that it'can be conveniently filled or cleaned.

Where the machine is used for graining flat boards, I preferably provide a su porting-roll Q, which is journaled .in detac able standards R u on the frame A. This roll is on a ,level with the transfer-roll D and serves t0 support the board While it is fed over the transfer-roll to receive the impression therefrom. For holding 'the board in contact with the transfer-roll and also to assist in feeding it an adjustable presser-roll S is employed,

which is arranged above the transfer-roll, and

this is preferab y driven at the same peripheral lspeed as the transfer-roll, thereby'feeding the board at a like speed. For driving the roll S, I preferably provide a belt connection I S', which connects ulleys respectively the saine in diameteras t edrum C and the roll S, and

to provide for takingk and giving slack for different adjustments of the roll S an idlerpulley T is adjustably secured to the frame and bears against the belt S. The roll S is preferably adjusted vertically by means of sliding bearings U, engaging the guide-frames U at opposite ends o f the frame andhaving connected lthereto the threaded rods 'VJ These rods are connected to a common driveshaft V by the miter-gears V?, and thus the operator by rotating the shaftV may raise or lower the roll Sfor diderent thicknesses of Work.

'-Where the machine is used for fashioned surfaces, the work is pressed into the elastic surface of the transfer-roll D, so as to contact `with all portions of the surface. If the work is of such shape that the feed-roll S cannot be used, ythe latter may be turned out of the Way by swinging downward Athe frames U', which are pivotally connected with the frame A and are normally clamped' thereto.`

The machine is frequently used for graining boards or other surfaces which are of lesser width than the pattern-roll.4 As a consequence .it is necessary toreinove all of the Apigment remaining upon the transfer-rollv I) after it has contacted with the surface to be grained, and to this enda scraper W is arranged as shown. nT his scraper is preferably formed of a metallic straight-edge m, secured to aba-r n, which is detacliably secured in slotted bearings in the frame by means of the thu rnb-screws 0. The scraper is preferably adjusted-so as to bear against the surface of thetransfer-roll l), and before the latter has conipleted a'revolution from the point of receiving the impression the pigment will be scraped o'l'l' by the metallic straight-odge m.

What I claim as my invention is* l. In a graini1iginachine, the combination with a traveling wood-pattern surface, of a scraper for removing the surplus pigment therefrom comprising a leather strip lforming a scraping edge, and a metallic spring-strip for yieldingly pressing said leather against the scraper for removing 'the surplus pigment lOO therefrom consisting of a continuous leather strip forming the scraping edge, a series of metallic s rings backing said scraping edge and'mdividual tension adjustments for each spring. 3. n a graining-machine, the combination with a traveling wood-pattern surface, of a scraper for removing the surplus pigment therefrom consisting ofv a pair of clamping-- bars,a leather strip arranged between the same and projecting to form a scraping edge for bearing against the pattern-surface, and screws bearing against the rear edge of said leather strip for adjusting the same toward. the pattern-surface at different points in the length thereof.

4. Ina graining-machine, the combination with a traveling Wood-pattern surface, of a scraper for removing the surplus pigment therefrom consisting in a leather strip'andia` pair of clamping-bars embracing the same, means for adjusting said bars in angularity and in distance from the pattern-surface, a series of springs for backing the leather strip,

IZO

and individual yadjusting-screws for. vvarying j the tension of said-springs.

5, In a graining-machine, the combination with a rotary Wood pattern, fof a segmental pigment-tank, and means for 'verticallyad-- justing said tank comprising a pair of linkhangers, a crank, and a slotted bearing supporting the tank with whichsaid crank engages, whereby the tank may be simultaneously adjusted vertically and laterally.

6. In a graining-machine, the combination with a traveling wood-.pattern surface, of a scraper for removing the surplus pigment therefrom, means for adjusting the scraper toward or from said surface and means for moving portions of the scraping edge toward or from said surface.

7. In a graining-machine, the combination with a traveling Wood-pattern surface, of a scraper for removing the surplusl pigment therefrom yi'eldingly pressed thereagainst, means for adjusting the tension of said scraper at different points in its length, and

means for adjusting the anguiarity of said scraper in relation to said surface.

8. In a graining-machine, the combination with a traveling wood-pattern' surface, ofa scraper yhaving a flexible edge conformable to variations in the contour of said Wood surface, and auxiliary resilient means for pressing the scrapingiedge in contact With the surface o the Wood at all points in the length thereo 9. In a graining-machine, Athe combination with a traveling wood-pattern surface, of a scraper extending across said surface transversely of the direction of movement thereof, independently-adjustable reinforcements for said scraper and means for adjusting said scraper toward or from said surface.

10. In a graining-machine, the combination with a traveling wood-pattern surface, of a ,scraper extending across said surface, means for independently yieldingly pressing portions of the edge of said scraper against said surface, and means for changing the angularity of said scraper to said surface.

In testimony whereof I afiix my signature in presence of two witnesses.

A CHARLES W. MUN Z. Witnesses:

EDWARD D. AULT, JAMES P. BARRY. 

